package com.qcq.springcloud.filter;

import io.netty.util.internal.StringUtil;
import org.apache.commons.lang.StringUtils;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @author ：qcq
 * @date ：Created in 2020/11/28 14:19
 * @description：
 */
@Component
public class LoginFilter implements GlobalFilter, Ordered {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        String token = request.getQueryParams().getFirst("token");
        if (StringUtils.isEmpty(token)) {
             response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        if (!"admin".equalsIgnoreCase(token)) {
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }

        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 1;
    }
}
